Swing is a rhythm technique commonly used in jazz music. It is formed by shortening and extending certain beats in a piece. A note with swing rhythm is really just a dotted eighth note and a sixteenth note. For example let’s use a paired 8th note as an example, the first eighth note will be turned into a dotted eighth note to extend the beat while the second eighth note will be shortened into a sixteenth note. This is the basic rule of thumb to understand swing rhythm: extend the first note, shorten the second note.